Nut and pipe wrench.



PATENTED JULY 11, 1905. K. PETERSON.

NUT AND PIPE WRENCH.

APPLICATION FILED DEO.10,' 1904.

3 u 00 n fez wimm {3 WQMM Iatented. July 11, 1905.

PATENT OFFICE.

KARL PETERSON, OF J AMESTOWN, NEW YORK.

NUT AND PIPE WRENCH.

SPECIFICATION forming part of Letters Patent No. 794,249, dated July 11, 1905.

I Application filed December 10, 1904. Serial No. 236,329.

To ZLZZ whmn it may concern.-

Be it known that I, KARL PETERSON, a citizen of the United States, residing at J amestown, in the county of Chautauqua and State of New York, have invented a new and useful Pipe and Nut Wrench, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to improvements in combined pipe and nut wrenches; and the object of my improvement is to provide a tong form of wrench in which the jaws are adapted to grip a pipe with a toothed jaw and the nut of a bolt with smooth jaws in a peculiar manner, as hereinafter shown and described.

In the drawings, Figure 1 is a side elevation of my wrench engaging a piece of pipe. Fig. 2 is a like elevation engaging a nut, the pivotal jaw-cap being turned outward. Fig. 3 is a like elevation of the wrench closed.

. Fig.4: is a detail of the front of the hinge for the jaw-cap. Fig. 5 is a detail view of the toothed face of the jaw-cap.

Similar numerals refer to corresponding parts in the several views. v

My wrench is made in the tong form, composed of the two parts 10 and 11, with suitable handles. The two parts are united by a central rivet 12 and have the upper and under jaws 13 and 14. Under jaw 13 is made wide and strong to provide for notches 15 therein, which notches are made large to engage the two sides of the lower corner of nut 16, as shown in Fig. 2. A jaw-cap 17 is pivotally hinged to the jaw 13 by means of intersecting tongues and pin, as shown at 18. Jaw-cap 17 is formed on its under side with notches 19, fitting into notches 15. The rear portion of its upper side is formed with teeth 20 to engage the pipe, as shown in Fig. 1, and the forward portion of the cap or that next to the hinge is formed with a non-toothed finely-serrated surface 21, a slot being left for the intersecting tongue of hinge 18. Upper jaw 14: is made with adownward bend 22, which places the lower outer end of the upper jaw in position in front of the downwardly-curved face of the under jaw. A notch 23 is cut on the under side of the upper jaw, and its sides extend substantially parallel to the opposite angled sides of the notches 15 on the under jaw, so that a nut 16 is held on both sides of the upper corner diagonally opposite to the corner held by the under jaw in notch 15, as shown in Fig. 2, the different notches 15 being provided in the under jaw for the different-sized nuts. The notches 15 are given a rear slant for such enlargement and also that cap 17 may press against the projecting sides of the notches as it engages the pipe, as shown in Fig. 1, and does not strain the hinge-pin. The portion 21 of the face of cap 17 engages the outer portion of the under jaw in a close grip, as shown at 24 in Fig. 3, for holding thin pieces of metal and similar small objects. I preferably give the toothed face of the cap the form of an outward curve tobest engage the pipe and press the same against the sides of notch 23. I find that such curved form enables me to get a firm grip on the pipe in conjunction with the sides of notch 23, so that the said sides of notch 23 do not need to be serrated, but may be left smooth. This holding of the nut 16 in angular openings which have smooth sides is one of the desired objects of my invention in combination with a pipe-wrench. The need of a tong-wrench which will engage either a pipe or nut with smooth-faced jaws for the nut and toothed jaws for the pipe is especially applicable to use in finely-finished vehicles, like automobiles, where it is desirable not to mar the finish of the nuts by the use of serrated jaws. It is obvious, therefore, that my arrangement of a hinged cap gives these desired utilities and yet provides a strong convenient tong-wrench.

It is apparent that the form of my jaws is such that I grip both the nut or pipe with a wrench-grip and that I do not have to mash the handles to continue the grip when once attained, it only being necessary to place the wrench in contact with the nut or pipe and then press on the upper handle.

I claim as new 1. A combined pipe and nut wrench consisting of two pivotally attached members having handles and jaws, an angled opening in the under side of the upper jaw, a series of opposite angled openings in the under jaw to form steps for different-sized nuts, and a hinged cap on said under jaw having a toothed upper surface for pipe and angled openings in its under surface to fit said steps, substantially as and for the purpose specified.

2. A combined pipe and nut Wrench consisting of the two members 10 and 11 pivotally attached by rivet 12, the said members having the downwardly-tn rned jaws 13 and 14, an angled opening 23 on the under side of the nib of said upper jaw, opposite angled openings or steps 15 in said under jaw to fit differentsized nuts in conjunction with opening 23, hinged cap 17 having its rear face formed in teeth 20 to engage pipe, and the underside of said cap formed in steps 19 corresponding to 5 the steps 15 to fit the same and an intersecting hinge 18 for the cap and jaw, substantially as and for the purpose specified.

1 In testimony whereofl have signed my name to this specification i-nithe presence of two sub- 20 scribing witnesses.

KARL PETERSON.

Witnesses:

F. W. GURNEY, ROBERT E. STRONG. 

